Janekovic D, Wunderl S, Holz I, Zillig W, Gierl A, Neumann H (1983). "TTV1, TTV2 and TTV3, a family of viruses of the extremely thermophilic, anaerobic, sulfur reducing archaebacterium Thermoproteus tenax". Mol Gen Genet. 192 (1–2): 39–45. doi:10.1007/BF00327644. S2CID46094905.
Janekovic D, Wunderl S, Holz I, Zillig W, Gierl A, Neumann H (1983). "TTV1, TTV2 and TTV3, a family of viruses of the extremely thermophilic, anaerobic, sulfur reducing archaebacterium Thermoproteus tenax". Mol Gen Genet. 192 (1–2): 39–45. doi:10.1007/BF00327644. S2CID46094905.